138322077 has 8 divisors (see below), whose sum is σ = 185060064. Its totient is φ = 91899408.

The previous prime is 138322061. The next prime is 138322091. The reversal of 138322077 is 770223831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138322077 - 2⁴ = 138322061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138322007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77803 + ... + 79560.

It is an arithmetic number, because the mean of its divisors is an integer number (23132508).

Almost surely, 2^138322077 is an apocalyptic number.

It is an amenable number.

138322077 is a deficient number, since it is larger than the sum of its proper divisors (46737987).

138322077 is a wasteful number, since it uses less digits than its factorization.

138322077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157659.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 138322077 is about 11761.0406427323. The cubic root of 138322077 is about 517.1666372693.

The spelling of 138322077 in words is "one hundred thirty-eight million, three hundred twenty-two thousand, seventy-seven".